Results 31 to 40 of about 3,575 (205)

Fatigue crack growth rates for offshore wind monopile weldments in air and seawater: SLIC inter-laboratory test results [PDF]

, 2016
The majority of fatigue crack growth (FCG) data sets available on steels in air and seawater environments are several decades old and may not be appropriate for structural integrity assessment of offshore wind turbine foundations, which are fabricated ...
Brennan, Feargal P., Mehmanparast, Ali, Tavares, Isaac   +2 more
core   +2 more sources

An innovative experimental device for characterizing the responses of monopiles subjected to complex lateral loading [PDF]

E3S Web of Conferences
Offshore wind turbines are usually founded on monopiles. During the operation period, the structure is subjected to complex lateral loading from wind, wave and current.
Zhang Zitao, Wang Wei, Zhang Xuedong, Yu Guangming, Hu Jing   +4 more
doaj   +1 more source

Sensitivity Analysis of Material and Load Parameters to Fatigue Stresses of an Offshore Wind Turbine Monopile Substructure [PDF]

, 2017
Steel monopiles are support structures mostly applied for offshore wind turbines. Their installation is straightforward, in particular, in shallow and medium waters.
Beer, Michael, Broggi, Matteo, Glisic, Ana, Schaumann, Peter   +3 more
core   +2 more sources

Borehole Instability in Decomposed Granite Seabed for Rock-Socketed Monopiles during “Drive-Drill-Drive” Construction Process: A Case Study

Journal of Marine Science and Engineering, 2023
Monopiles are commonly used in the construction of offshore wind turbines. However, implementing drive-drill-drive construction techniques in decomposed granite seabed may lead to borehole instability during the window period between drilling and pile ...
Bo Sun, Qi Zhang, Wenxuan Zhu, Jian Leng, Guanlin Ye   +4 more
doaj   +1 more source

Effect of Reinforced Bucket on Bearing Capacity and Natural Frequency of Offshore Wind Turbines Using Pile–Bucket Foundation

Advances in Civil Engineering, 2022
Large-diameter monopiles have been widely used for constructing offshore wind turbines. The bearing capacity of a monopile foundation is a significant research problem.
Xiaodong Pan, Ben He, Zonghao Yuan, Shiwu Xu, Danting Xu, Zhenqiang Jiang, Li Shi, Honglei Sun   +7 more
doaj   +1 more source

Drainage conditions around monopiles in sand [PDF]

Applied Ocean Research, 2019
Abstract Large diameter monopiles are typical foundation solutions for offshore wind turbines. In design of the monopile foundations in sand, it is necessary to understand the drainage conditions of the foundation soil under the design loading conditions as the soil performance (strength and stiffness) is highly dependent on the drainage conditions ...
Li, Shuzhao, Zhang, Youhu, Jostad, Hans Petter   +2 more
openaire   +2 more sources

Assessment of natural frequency of installed offshore wind turbines using nonlinear finite element model considering soil-monopile interaction

Journal of Rock Mechanics and Geotechnical Engineering, 2018
A nonlinear finite element model is developed to examine the lateral behaviors of monopiles, which support offshore wind turbines (OWTs) chosen from five different offshore wind farms in Europe.
Djillali Amar Bouzid, Subhamoy Bhattacharya, Lalahoum Otsmane   +2 more
doaj   +1 more source

The Lateral Behavior of Large-Diameter Monopiles for Offshore Wind Turbines Based on the p-y Curve and Solid FEM Methods

Journal of Marine Science and Engineering, 2023
With the rapid increase in offshore wind turbines in China, monopiles with diameters exceeding 2 m are widely used. As these piles are subjected to lateral loads caused by wind, waves, and currents, the designs of the pile foundations supporting the ...
Tao Li, Xinran Yu, Ben He, Song Dai
doaj   +1 more source

PISA Design Methods for Offshore Wind Turbine Monopiles [PDF]

Offshore Technology Conference, 2019
Abstract This paper provides an overview of the PISA design model recently developed for laterally loaded offshore wind turbine monopiles through a major European joint-industry academic research project, the PISA Project. The focus was on large diameter, relatively rigid piles, with low length to diameter (L/D) ratios, embedded in clay ...
Byrne, B, Burd, H, Zdravkovic, L, Abadie, C, Houlsby, G, Jardine, R, Martin, C, McAdam, R, Andrade, M, Pedro, A, Potts, D, Taborda, D   +11 more
openaire   +1 more source

Numerical Analysis of Jacked and Impact-Driven Pile Installation Procedures in Offshore Wind Turbine Foundations

Geotechnics
The increasing global demand for renewable energy has resulted in a high interest in wind power, with offshore wind farms offering better performance than onshore installations.
Ka Lok Chan, Susana Lopez-Querol, Pedro Martin-Moreta   +2 more
doaj   +1 more source